The Mac and iPhone/iPad maker (NASDAQ: AAPL) will become one of The Dow's 30 blue chip companies after trading closes on March 18.

The company's share price was more than $128 as of this writing. A 7-for-1 share split by Apple last year and a more recent 4-for-1 split by Visa enabled the Dow to let Apple in with messing up its delicate balance.

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